Khalid AH. Evaluation of the Rocks of The Pila Spi Formation of Duhok Anticline For Building Stones – Kurdistan Region Of Iraq. SJUOZ [Internet]. 2021 Dec. 30 [cited 2024 May 12];9(4):163-70. Available from: https://sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/837